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Torsional and shear wind loads on flat-roofed buildings
Abstract There is limited information available on wind-induced torsional loads on buildings. This paper presents results of wind tunnel tests carried out on a series of models of low- and medium-rise buildings. Four buildings with the same plan dimensions but different heights (6, 12, 25 and 50m) were tested in a simulated open terrain exposure for different wind directions. Synchronized wind pressure measurements allowed estimating instantaneous base shear forces and torsional moments on the tested rigid building models. Results were normalized and presented in terms of mean and peak values of shear and torsional coefficients for two load cases, namely: maximum torsion and corresponding shear, and maximum shear and corresponding torsion. Comparison of the wind tunnel test results with current torsion- and shear-related provisions in the American Standard as well as the Canadian and European codes demonstrates significant discrepancies. The findings of this study could assist wind code and standards committees to improve provisions for wind-induced torsional loads on buildings.
Torsional and shear wind loads on flat-roofed buildings
Abstract There is limited information available on wind-induced torsional loads on buildings. This paper presents results of wind tunnel tests carried out on a series of models of low- and medium-rise buildings. Four buildings with the same plan dimensions but different heights (6, 12, 25 and 50m) were tested in a simulated open terrain exposure for different wind directions. Synchronized wind pressure measurements allowed estimating instantaneous base shear forces and torsional moments on the tested rigid building models. Results were normalized and presented in terms of mean and peak values of shear and torsional coefficients for two load cases, namely: maximum torsion and corresponding shear, and maximum shear and corresponding torsion. Comparison of the wind tunnel test results with current torsion- and shear-related provisions in the American Standard as well as the Canadian and European codes demonstrates significant discrepancies. The findings of this study could assist wind code and standards committees to improve provisions for wind-induced torsional loads on buildings.
Torsional and shear wind loads on flat-roofed buildings
Elsharawy, Mohamed (author) / Galal, Khaled (author) / Stathopoulos, Ted (author)
Engineering Structures ; 84 ; 313-324
2014-11-21
12 pages
Article (Journal)
Electronic Resource
English
Torsional and shear wind loads on flat-roofed buildings
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